Archive Page Query Issue

Thank you guys for your help in advance.

The page i’m working on is http://www.ourvinyl.com

if you go to the archives page you will see a list of about 20 posts, that are in no particular order.

Now if you click on page 2 and on, you’ll see the results the exact way they were meant to be seen. As you can see from the code below, the page is supposed to display 6 posts per page. I have no idea why i’m getting this problem on page 1 but none of the others. I have wasted many days on this issue. I have no idea why theres 20 posts showing up, and why they’re not in chronological order.

<?php
/*
Template Name: Category Archive
*/
?>

<?php get_header(); ?>
<?php if (have_posts()) : ?>

<div id="primary">
  <h1>Our Vinyl Archives</h1>
  <div class="line"> <img src="<?php bloginfo('template_url'); ?>/images/line.png"  /> </div>

    <?php $temp = $wp_query;
        $wp_query= null;
        $wp_query = new WP_Query();
        $wp_query->query('showposts=6'.'&paged='.$paged); ?>
        <?php while ($wp_query->have_posts()) : $wp_query->the_post(); ?><br/>

    <div class="search">
                  <div id="search-entry"> <a href="<?php the_permalink(); ?>">
                    <?php the_post_thumbnail(); ?>
                    </a>
                    <div id="excerpt">
                      <h2><a href="<?php the_permalink(); ?>">
                        <?php the_title(); ?>
                        </a></h2>
                      <p class="meta">
                        <?php the_time(get_option('date_format')); ?>
                        |
                        <?php comments_number(); ?> - Category: <?php the_category(' '); ?>
                      </p>
                      <!--post meta data-->
                      <h5>
                        <?php the_excerpt(); ?>
                      </h5>
                      <div class="readmore"><a href="<?php the_permalink(); ?>">Read More >></a></div>
                    </div><!--end of right excerpt-->

                  </div><!--end of search entry-->

    </div><!--end of primary-->

  <?php endwhile; ?>
  <?php include (TEMPLATEPATH . '/inc/nav.php' ); ?>
  <?php else : ?>

    <div id="primary">
  <h1>No Posts Found</h1>

  <?php endif; ?>
</div>
<!--end of primary-->
<?php get_sidebar(); ?>
<?php get_footer(); ?>

Thank you guys for any help you can give me.
-Matt